Aqueous metal–air batteries are promising next-generation energy storage and supply
technologies due to their advantages of high energy density and intrinsic safety. As an …

Durability and performance degradation of PEM fuel cells are amongst the most critical
challenges associated with this technology. Air contaminants, fuel impurities, cleansers, and …

This study demonstrates promising bifunctionality of nitrogen-doped carbon nanostructures
(CN x) for ORR and OER in acidic medium. Although CN x catalysts are not as active as Pt/C …

The widespread use of fuel cells is currently limited by the lack of efficient and cost-effective
catalysts for the oxygen reduction reaction. Iron-based non-precious metal catalysts exhibit …

Graphene has been highlighted recently as a promising material for energy conversion due
to its unique properties deriving from a two-dimensional layered structure of sp2-hybridized …

As an alternative energy, hydrogen can be converted into electrical energy via direct
electrochemical conversion in fuel cells. One important drawback of full cells is the sluggish …

The oxygen reduction reaction (ORR) is of primary importance for the direct and clean
conversion of energy in fuel cells, necessarily requiring an electrocatalyst to be exploited. At …

N-doped carbon materials are considered as next-generation oxygen reduction reaction
(ORR) catalysts for fuel cells due to their prolonged stability and low cost. However, the …

To probe the active sites of nitrogen-doped carbon nanostructures (CN x), the effect of
dihydrogen phosphate (H2PO4–) anion on their oxygen reduction reaction (ORR) …

The performance degradation of proton exchange membrane fuel cells (PEMFCs) is one of
the most critical challenges in their practical applications. Degradations of electrocatalysts …